Side by side

Bremont Supermarine ChronovsGrand Seiko SBGA427

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850
SBGA427
Grand SeikoSBGA427
MSRP $5,800

At a glance

12 of 29 specs differ
Diameter
Supermarine Chrono43mm
SBGA42739mm
Power Reserve
Supermarine Chrono40h
SBGA42772h
Water Resistance
Supermarine Chrono300m
SBGA427100m
MSRP
Supermarine Chrono$6,850
SBGA427$5,800

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
43mm
39mm
Thickness
15.87mm
12.3mm
Lug-to-Lug
46.8mm
Lug Width
22mm
19mm
Material
Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
BE-50AE
9R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$6,850
$5,800

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Supermarine Chrono

The Bremont Supermarine Chrono's black dial and understated bezel markings allow it to transition effectively from rugged use to evening events. On balance, owners and reviewers find the Bremont Supermarine Chrono to be a handsome and functional watch, with its versatile dial design being a key strength.

Grand Seiko SBGA427

Grand Seiko SBGA427 owners widely praise its extensive Zaratsu polishing and the "hall of mirrors" effect created by its diamond-cut indexes, complemented by a subtle, reeded dial and a striking green seconds hand. The 39mm case is noted for its comfortable, tapered bracelet, and the 9R65 Spring Drive movement is visible through the caseback. Some owners report the highly polished Zaratsu finish is prone to scuffs and scratches, with one mentioning a scratch near 1 o'clock. The Grand Seiko SBGA427 sold for $3750. Overall, owners rate the Grand Seiko SBGA427 highly for its exceptional finishing and the unique visual appeal of its dial and indexes.

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